baldpate vs Anas penelope

baldpate and Anas penelope both are nouns.

Word	Noun	Adjective	Verb	Adverb
baldpate	Yes	No	No	No
Anas penelope	Yes	No	No	No

As nouns, Anas penelope is a hypernym of baldpate; that is, Anas penelope is a word with a broader meaning than baldpate:

baldpate: a widgeon the male of which has a white crown
Anas penelope: freshwater duck of Eurasia and northern Africa related to mallards and teals

Other hypernyms of baldpate include widgeon, wigeon.

baldpate (noun)	Anas penelope (noun)
a widgeon the male of which has a white crown	freshwater duck of Eurasia and northern Africa related to mallards and teals
a person whose head is bald or shaved